Detachable false tooth

Abstract

The utility model discloses a detachable false tooth, and relates to the technical field of false teeth. Comprising a base and a dental crown detachably arranged on the base; the dental crown is provided with a screw rod, the base is provided with a screw sleeve in threaded fit with the screw rod and a bearing connected with the screw sleeve, and the screw sleeve is rotatably arranged on the base through the bearing; a first cross groove is formed in one end, opposite to the screw rod, of the screw sleeve; a first groove is formed in one end, opposite to the screw rod, of the base; the sealing structure further comprises a sealing block matched with the first groove, a first cross-shaped block matched with the first cross-shaped groove is formed at the end, close to the threaded sleeve, of the sealing block, and the sealing block is suitable for being clamped in the first groove. By adopting the technical scheme provided by the invention, the base and the dental crown can be quickly disassembled, so that a user can conveniently maintain and replace the dental crown subsequently.

Description

Technical Field

[0001] The present application relates to the technical field of dentures, and in particular to a detachable denture. Background Art

[0002] All-ceramic crowns, also known as all-ceramic crowns, are porcelain restorations that cover the entire crown surface and contain no metal inner core. They are typically made from blocks of materials such as zirconium oxide through a series of machining, finishing, and sintering steps. As such, they offer a more aesthetically pleasing aesthetic than metal-based porcelain restorations, with a translucency similar to that of natural teeth. This allows for a more natural-looking gingival margin, making them a popular choice for aesthetic restorations of anterior teeth.

[0003] Traditional all-ceramic teeth are made of zirconia, and generally use adhesives to fix the dental post and crown. For example, the "all-ceramic tooth" disclosed in the Chinese patent "CN220988939U" increases the rough surface to promote the adhesive to better adhere to the contact surface of the dental post and the dental crown, and further provides a limiter to achieve the limit of the two and achieve a stable connection; but it is understandable that this method can be regarded as a one-time assembly. During subsequent maintenance, due to the difficulty of disassembly, only the dental post and the crown can be replaced together, which causes certain inconveniences in disassembly, replacement and maintenance. Utility Model Content

[0004] The purpose of this application is to provide a detachable denture to solve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the present application provides a detachable denture, comprising a base and a crown detachably provided on the base;

[0006] The crown is provided with a screw, the base is provided with a screw sleeve that matches the screw thread and a bearing connected to the screw sleeve, and the screw sleeve is rotatably arranged on the base through the bearing;

[0007] A first cross groove is formed on one end of the screw sleeve facing away from the screw rod;

[0008] A first groove is formed at one end of the base facing away from the screw;

[0009] The invention also includes a sealing block adapted to the first groove, wherein the sealing block is formed with a first cross block adapted to the first cross groove at one end close to the screw sleeve, and the sealing block is adapted to be clamped in the first groove;

[0010] In the above implementation process, when assembling, align the screw on the crown with the screw sleeve on the base, insert it into the first cross groove on the screw sleeve through the corresponding tool, and then rotate the screw sleeve, which is rotatably set on the base through the bearing; after rotating the screw sleeve, the screw can be gradually extended into the screw sleeve, and finally the crown is fixed on the base; after the crown and the base are fixed, insert the sealing block into the first groove, and align the first cross block on the sealing block with the first cross groove on the screw sleeve during insertion, and then insert it, the first cross block will be stuck in the first cross groove, which not only realizes filling and sealing, but also can clamp the screw, thereby reducing the loosening of the screw sleeve and ensuring the gap between the base and the crown. connection stability; when disassembly is required, the sealing block can be pried open first, and then the corresponding tool can be inserted into the first cross groove, and the screw sleeve can be rotated to rotate the screw out, so that the crown can be replaced; this solution has a simple structure, and the base and the crown can be quickly disassembled through the cooperation of the screw and the screw sleeve, which is convenient for subsequent users to maintain and replace the crown; in addition, this solution further provides a sealing block to protect the internal structure and prevent excessive impurities from entering the base, thereby effectively extending the service life. The first cross block on the sealing block is adapted to the first cross groove on the screw sleeve, so that the screw sleeve can be limited, thereby ensuring the connection stability between the base and the crown.

[0011] Preferably, a sealing ring is provided at one end of the sealing block close to the screw;

[0012] In the above implementation process, the sealing ring can abut against the bottom surface of the first groove to further improve its sealing performance, thereby providing better protection for internal components.

[0013] Preferably, a limiting block is provided on the outer edge of the sealing block;

[0014] A limiting groove adapted to the limiting block is formed on the base, and the limiting groove is communicated with the first groove;

[0015] In the above implementation process, the limit block on the sealing block is adapted to the limit groove on the base. The cooperation between the limit block and the limit groove can further limit the rotation of the sealing block, thereby preventing the screw sleeve from rotating in the assembled state, thereby ensuring the connection stability between the base and the crown.

[0016] Preferably, a second cross block is provided at one end of the screw rod close to the crown, and a second cross groove adapted to the second cross block is formed at one end of the base close to the crown;

[0017] In the above implementation process, when the screw is inserted into the thread sleeve to a certain depth, the second cross block located at the bottom of the crown will enter the second cross groove, and the second cross groove will limit the second cross block; the cooperation between the second cross groove and the second cross block can not only provide a reference for the assembly of the crown, but also prevent the crown from loosening due to self-rotation, thereby further improving the connection stability.

[0018] Preferably, the crown comprises, from the inside to the outside, a base material layer, a toughness layer, a fluoride layer and a wear-resistant layer;

[0019] Preferably, the substrate layer is made of zirconium dioxide material;

[0020] Preferably, the toughness layer is made of polypropylene material;

[0021] Preferably, the wear-resistant layer is made of polyurethane material;

[0022] In the above implementation process, the crown provided by this solution is composed of a four-layer structure, in which zirconium dioxide material is used as the base material layer. It itself has good chemical stability, so it can be used stably for a long time in a complex oral environment. In addition, it itself has a high hardness, so as a base material layer, it can ensure that the crown has a good hardness foundation; outside the base material layer is a toughness layer, which is made of polypropylene material. The polypropylene has been modified to have good mechanical properties, which can effectively improve the toughness of the crown and extend its service life; a fluoride layer is further added to the outside of the polypropylene material. It can be understood that the fluoride layer is made of fluoride, which can effectively inhibit bacterial growth, thereby being beneficial to the prevention and treatment of caries; and the structure located on the outermost layer is made of polyurethane material. Polyurethane has good wear resistance, so it can effectively enhance the wear resistance of the crown, thereby protecting the internal structure. At the same time, it can effectively isolate air and moisture, further enhance the protection of the internal structure, and extend the service life of the crown.

[0023] Compared with the prior art, the beneficial effects of the present application are: the present solution has a simple structure, and the base and the crown can be quickly disassembled through the cooperation of the screw and the screw sleeve, which makes it convenient for subsequent users to maintain and replace the crown; in addition, the present solution further provides a sealing block to protect the internal structure and prevent excessive impurities from entering the base, thereby effectively extending the service life. The first cross block on the sealing block is adapted to the first cross groove on the screw sleeve, so that the screw sleeve can be limited, thereby ensuring the stability of the connection between the base and the crown. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic structural diagram of a dental crown according to one embodiment of the present application;

[0026] Figure 2 This is a partial structural diagram of one embodiment of the present application;

[0027] Figure 3 This is a schematic structural diagram of a sealing block according to one embodiment of the present application;

[0028] Figure 4 This is a schematic structural diagram of a dental crown according to one embodiment of the present application;

[0029] Among them: 10, crown; 11, base material layer; 12, toughness layer; 13, fluoride layer; 14, wear-resistant layer; 20, base; 30, screw; 31, second cross block; 40, sealing block; 41, first cross block; 42, limit block; 43, sealing ring; 50, screw sleeve; 51, bearing; 52, second cross groove; 53, first groove. DETAILED DESCRIPTION

[0030] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0031] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] In order to further understand the content, features and effects of the utility model of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0034] Example

[0035] Traditional all-ceramic teeth are made of zirconium oxide, and generally use adhesives to fix the tooth post and crown. For example, the "all-ceramic tooth" disclosed in Chinese patent "CN220988939U" increases the rough surface to promote the adhesive to adhere better to the contact surface of the tooth post and the crown, and further provides a limiter to limit the position of the two and achieve a stable connection. However, it is understandable that this method can be regarded as a one-time assembly. During subsequent maintenance, due to the difficulty of disassembly, the tooth post and the crown can only be replaced together, which causes certain inconveniences in disassembly, replacement and maintenance. In order to solve the above technical problems, this embodiment provides the following technical solutions:

[0036] For details, see Figure 1-4 , this embodiment provides a detachable denture, comprising a base 20 and a crown 10 detachably mounted on the base 20;

[0037] For details, see Figure 1 The crown 10 is provided with a screw 30, and the base 20 is provided with a screw sleeve 50 threadedly matched with the screw 30 and a bearing 51 connected to the screw sleeve 50. The screw sleeve 50 is rotatably provided on the base 20 through the bearing 51;

[0038] Specifically, a first cross groove (not shown) is formed on one end of the screw sleeve 50 facing away from the screw rod 30;

[0039] Furthermore, a first groove 53 is formed at one end of the base 20 facing away from the screw 30;

[0040] Specifically, it also includes a sealing block 40 adapted to the first groove 53, and a first cross block 41 adapted to the first cross groove is formed on one end of the sealing block 40 close to the screw sleeve 50, and the sealing block 40 is suitable for being clamped in the first groove 53;

[0041] In the above scheme, during assembly, the screw rod 30 on the crown 10 is aligned with the screw sleeve 50 on the base 20, and is inserted into the first cross groove on the screw sleeve 50 through the corresponding tool, and then the screw sleeve 50 is rotated, and the screw sleeve 50 is rotatably set on the base 20 through the bearing 51; after rotating the screw sleeve 50, the screw rod 30 can be gradually extended into the screw sleeve 50, and finally the crown 10 is fixed on the base 20; after the crown 10 and the base 20 are fixed, the sealing block 40 is inserted into the first groove 53, and when inserting, the first cross block 41 on the sealing block 40 is aligned with the first cross groove on the screw sleeve 50, and then inserted, the first cross block 41 will be stuck in the first cross groove, which not only realizes filling and sealing, but also can clamp the screw rod 30, thereby reducing the loosening of the screw sleeve 50 and ensuring the base 2 0 and the connection stability between the crown 10; when disassembly is required, the sealing block 40 can be pried open first, and then the corresponding tool can be inserted into the first cross groove, and the screw sleeve 50 can be rotated to rotate the screw 30 out, thereby realizing the replacement of the crown 10; this solution has a simple structure, and the base 20 and the crown 10 can be quickly disassembled through the cooperation of the screw 30 and the screw sleeve 50, thereby facilitating the subsequent user to maintain and replace the crown 10; in addition, this solution further provides a sealing block 40, which can protect the internal structure and prevent excessive impurities from entering the base 20, thereby effectively extending the service life. The first cross block 41 on the sealing block 40 is adapted to the first cross groove on the screw sleeve 50, so that the screw sleeve 50 can be limited, thereby ensuring the connection stability between the base 20 and the crown 10.

[0042] For details, see Figure 3 A sealing ring 43 is provided at one end of the sealing block 40 close to the screw 30;

[0043] In the above solution, the sealing ring 43 can abut against the bottom surface of the first groove 53 to further improve its sealing performance, thereby providing better protection for internal components.

[0044] For details, see Figure 3 , a limiting block 42 is provided on the outer edge of the sealing block 40;

[0045] Furthermore, a limiting groove adapted to the limiting block 42 is formed on the base 20, and the limiting groove is communicated with the first groove 53;

[0046] In the above scheme, the limit block 42 on the sealing block 40 is adapted to the limit groove on the base 20. The cooperation between the limit block 42 and the limit groove can further limit the rotation of the sealing block 40, thereby preventing the screw sleeve 50 from rotating in the assembled state, thereby ensuring the connection stability between the base 20 and the crown 10.

[0047] Specifically, a second cross block 31 is provided at one end of the screw 30 close to the crown 10 , and a second cross groove 52 adapted to the second cross block 31 is formed at one end of the base 20 close to the crown 10 ;

[0048] In the above scheme, when the screw 30 is inserted into the screw sleeve 50 to a certain depth, the second cross block 31 located at the bottom of the crown 10 will enter the second cross groove 52, and the second cross groove 52 will limit the second cross block 31; the cooperation between the second cross groove 52 and the second cross block 31 can not only provide a reference for the assembly of the crown 10, but also prevent the crown 10 from loosening due to self-rotation, thereby further improving the connection stability.

[0049] Specifically, the crown 10 includes, from the inside to the outside, a base material layer 11, a toughness layer 12, a fluoride layer 13, and a wear-resistant layer 14;

[0050] In one embodiment, the substrate layer 11 is made of zirconium dioxide material;

[0051] In one embodiment, the tough layer 12 is made of polypropylene;

[0052] In one embodiment, the wear-resistant layer 14 is made of polyurethane material;

[0053] In the above scheme, the crown 10 provided by this scheme is composed of a four-layer structure, in which zirconium dioxide material is used as the base material layer 11, which has good chemical stability itself, so it can be used stably for a long time in a complex oral environment. In addition, it also has a high hardness itself, so as the base material layer 11, it can ensure that the crown 10 has a good hardness foundation; outside the base material layer 11 is a toughness layer 12, and the toughness layer 12 is made of polypropylene material. The polypropylene has been modified to have good mechanical properties, which can effectively improve the toughness of the crown 10 and extend its service life; a fluoride layer 13 is further added outside the polypropylene material. It can be understood that the fluoride layer 13 is made of fluoride, which can effectively inhibit bacterial growth and thus be beneficial to the prevention and treatment of caries; and the structure located on the outermost layer is made of polyurethane material. Polyurethane has good wear resistance, so it can effectively enhance the wear resistance of the crown 10, thereby protecting the internal structure. At the same time, it can effectively isolate air and moisture, further enhance the protection of the internal structure, and extend the service life of the crown 10.

[0054] The above description is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application fall within the scope of the technical solution of the present application.

Claims

1. A removable denture, characterized by: It comprises a base and a crown detachably arranged on the base; The crown is provided with a screw, the base is provided with a screw sleeve that matches the screw thread and a bearing connected to the screw sleeve, and the screw sleeve is rotatably arranged on the base through the bearing; A first cross groove is formed on one end of the screw sleeve facing away from the screw rod; A first groove is formed at one end of the base facing away from the screw; It also includes a sealing block adapted to the first groove, wherein one end of the sealing block close to the screw sleeve is formed with a first cross block adapted to the first cross groove, and the sealing block is suitable for being clamped in the first groove.

2. The removable denture according to claim 1, wherein: A sealing ring is provided at one end of the sealing block close to the screw.

3. The removable denture according to claim 2, wherein: A limiting block is provided on the outer edge of the sealing block; A limiting groove adapted to the limiting block is formed on the base, and the limiting groove is communicated with the first groove.

4. The removable denture according to claim 1, wherein: A second cross block is provided at one end of the screw rod close to the tooth crown, and a second cross groove adapted to the second cross block is formed at one end of the base close to the tooth crown.

5. The removable denture according to any one of claims 1 to 4, characterized in that: The dental crown comprises a base material layer, a toughness layer, a fluoride layer and a wear-resistant layer in sequence from the inside to the outside.

6. The removable denture according to claim 5, characterized in that: The substrate layer is made of zirconium dioxide material.

7. The removable denture according to claim 5, characterized in that: The toughness layer is made of polypropylene material.

8. The removable denture according to claim 5, characterized in that: The wear-resistant layer is made of polyurethane material.

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